Windows 7 have a nifty feature which combines the windows of opened applications under the same taskbar button. If you don't like it you can always turn it off.
Google spreadsheets lets you create charts and graphs to visualize a data set. Let's take a look how to create a nice and simple chart in a matter of few clicks.
What is sea level, is it better to walk or run in the rain, why is it dark at night, what is dark matter and many more questions explained in short videos in a real fun and intuitive way.
